Home / 20,567.96-28,384.06-12,499.32

Finding the Fourth Proportional to 20,567.96, 28,384.06 and 12,499.32

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Solution

The fourth proportional to 20,567.96, 28,384.06 and 12,499.32 is: 17,249.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,567.96 : 28,384.06 = 12,499.32 : x
  2. Step 2: Convert to fraction form
    20,567.96/28,384.06 = 12,499.32/x
  3. Step 3: Cross multiply
    20,567.96x = 28,384.06 × 12,499.32
  4. Step 4: Simplify right side
    20,567.96x = 354,781,448.84
  5. Step 5: Solve for x
    x = 354,781,448.84/20,567.96
  6. Step 6: Final answer
    x = 17,249.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.